Details of VAR-202209-1834

ID

VAR-202209-1834

CVE

CVE-2022-40869

TITLE

Tenda of AC15 firmware and AC18 Out-of-bounds write vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2022-017553

DESCRIPTION

Tenda AC15 and AC18 routers V15.03.05.19 contain stack overflow vulnerabilities in the function fromDhcpListClient with a combined parameter "list*" ("%s%d","list"). Tenda of AC15 firmware and AC18 An out-of-bounds write vulnerability exists in firmware.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. Both the Tenda AC15 and Tenda AC18 are products of the Chinese company Tenda. Tenda AC15 is a wireless router. Tenda AC18 is a router. The vulnerability is caused by the fact that the fromDhcpListClient method does not check the size of the input data with the combination parameter list*. Attackers can exploit the vulnerability to cause remote code execution or denial of service

Trust: 2.16

sources: NVD: CVE-2022-40869 // JVNDB: JVNDB-2022-017553 // CNVD: CNVD-2022-88194

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2022-88194

AFFECTED PRODUCTS

vendor:	tendacn	model:	ac18	scope:	eq	version:	15.03.05.19	Trust: 1.0
vendor:	tendacn	model:	ac15	scope:	eq	version:	15.03.05.19	Trust: 1.0
vendor:	tenda	model:	ac15	scope:	-	version:	-	Trust: 0.8
vendor:	tenda	model:	ac18	scope:	-	version:	-	Trust: 0.8
vendor:	tenda	model:	ac18	scope:	eq	version:	v15.03.05.19	Trust: 0.6
vendor:	tenda	model:	ac15	scope:	eq	version:	v15.03.05.19	Trust: 0.6

sources: CNVD: CNVD-2022-88194 // JVNDB: JVNDB-2022-017553 // NVD: CVE-2022-40869

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2022-40869
value:	CRITICAL
Trust: 1.0
NVD:	CVE-2022-40869
value:	CRITICAL
Trust: 0.8
CNVD:	CNVD-2022-88194
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202209-2390
value:	CRITICAL
Trust: 0.6

CNVD:	CNVD-2022-88194
severity:	HIGH
baseScore:	7.5
vectorString:	AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2022-40869
baseSeverity:	CRITICAL
baseScore:	9.8
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	5.9
version:	3.1
Trust: 1.0
NVD:	CVE-2022-40869
baseSeverity:	CRITICAL
baseScore:	9.8
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2022-88194 // JVNDB: JVNDB-2022-017553 // CNNVD: CNNVD-202209-2390 // NVD: CVE-2022-40869

PROBLEMTYPE DATA

problemtype:	CWE-787	Trust: 1.0
problemtype:	Out-of-bounds writing (CWE-787) [NVD evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2022-017553 // NVD: CVE-2022-40869

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202209-2390

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202209-2390

PATCH

title:	Patch for Tenda AC15 and AC18 fromDhcpListClient stack overflow vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/372396	Trust: 0.6
title:	Tenda AC15 and Tenda AC18 Buffer error vulnerability fix	url:	http://123.124.177.30/web/xxk/bdxqById.tag?id=208893	Trust: 0.6

sources: CNVD: CNVD-2022-88194 // CNNVD: CNNVD-202209-2390

EXTERNAL IDS

db:	NVD	id:	CVE-2022-40869	Trust: 3.8
db:	JVNDB	id:	JVNDB-2022-017553	Trust: 0.8
db:	CNVD	id:	CNVD-2022-88194	Trust: 0.6
db:	CNNVD	id:	CNNVD-202209-2390	Trust: 0.6

sources: CNVD: CNVD-2022-88194 // JVNDB: JVNDB-2022-017553 // CNNVD: CNNVD-202209-2390 // NVD: CVE-2022-40869

REFERENCES

url:	https://github.com/cpseek/router-vuls/blob/main/tenda/ac18/fromdhcplistclient-list.md	Trust: 3.0
url:	https://github.com/cpseek/router-vuls/blob/main/tenda/ac15/fromdhcplistclient-list.md	Trust: 2.4
url:	https://nvd.nist.gov/vuln/detail/cve-2022-40869	Trust: 0.8
url:	https://cxsecurity.com/cveshow/cve-2022-40869/	Trust: 0.6

sources: CNVD: CNVD-2022-88194 // JVNDB: JVNDB-2022-017553 // CNNVD: CNNVD-202209-2390 // NVD: CVE-2022-40869

SOURCES

db:	CNVD	id:	CNVD-2022-88194
db:	JVNDB	id:	JVNDB-2022-017553
db:	CNNVD	id:	CNNVD-202209-2390
db:	NVD	id:	CVE-2022-40869

LAST UPDATE DATE

2024-08-14T14:37:17.792000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2022-88194	date:	2022-12-18T00:00:00
db:	JVNDB	id:	JVNDB-2022-017553	date:	2023-10-13T08:42:00
db:	CNNVD	id:	CNNVD-202209-2390	date:	2022-09-26T00:00:00
db:	NVD	id:	CVE-2022-40869	date:	2022-09-23T20:17:05.990

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2022-88194	date:	2022-12-17T00:00:00
db:	JVNDB	id:	JVNDB-2022-017553	date:	2023-10-13T00:00:00
db:	CNNVD	id:	CNNVD-202209-2390	date:	2022-09-23T00:00:00
db:	NVD	id:	CVE-2022-40869	date:	2022-09-23T14:15:13.393